← The evidence ledger
Evidence row 2026046
Observed , by sync.mcp_registry/1.
- Kind
- listing
- About
- source_record mcp_registry:com.steelweight-calculator/steel-sections
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- ab8c42e9052205ede0667f7a5d79943b19e2b3d6ad7e67b9d0520710afeed53e
- Leaf
- 0x94a9781b099eff0f96c1e5d9ae4444987603793b78b759d6575a2718c6fce049
What was observed
{
"endpoints": [
[
"web",
"https://steelweight-calculator.com/"
]
],
"name": "Steel Section Weights",
"owner_address": null,
"raw": {
"_meta": {
"io.modelcontextprotocol.registry/official": {
"isLatest": true,
"publishedAt": "2026-11-02T00:32:41.431988Z",
"status": "active",
"statusChangedAt": "2026-11-02T00:32:41.431988Z",
"updatedAt": "2026-11-02T00:32:41.431988Z"
}
},
"server": {
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"description": "Steel section weights and properties (IS 808, EN), pipe, rebar, gauges and shape weights.",
"name": "com.steelweight-calculator/steel-sections",
"packages": [
{
"identifier": "steel-sections",
"packageArguments": [
{
"name": "--mcp",
"type": "named"
}
],
"registryBaseUrl": "https://pypi.org",
"registryType": "pypi",
"runtimeHint": "uvx",
"transport": {
"type": "stdio"
},
"version": "0.2.1"
}
],
"title": "Steel Section Weights",
"version": "0.2.1",
"websiteUrl": "https://steelweight-calculator.com/"
}
},
"source": "mcp_registry",
"summary": "Steel section weights and properties (IS 808, EN), pipe, rebar, gauges and shape weights."
}What the leaf hashes
{"body":"ab8c42e9052205ede0667f7a5d79943b19e2b3d6ad7e67b9d0520710afeed53e","id":2026046,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793582291159016,"prev":null,"subject":"mcp_registry:com.steelweight-calculator/steel-sections","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
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- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af